<template>
  <div>
    <!-- aa面包屑 -->
    <el-breadcrumb separator=">">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- aa卡片区域 -->
    <el-card class="box-card">
      <!-- bb搜索，添加用户 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <div>
            <el-input
              placeholder="请输入内容"
              v-model="queryInfo.query"
              clearable
              @clear="getUserList"
            >
              <el-button
                slot="append"
                icon="el-icon-search"
                @click="getUserList"
              ></el-button>
            </el-input>
          </div>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- bb用户列表 -->
      <el-table :data="userlist" style="width: 100%" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column prop="mg_state" label="状态">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column prop="type" label="操作" width="180px">
          <template slot-scope="scope">
            <!-- cc编辑用户信息的按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope)"
            ></el-button>
            <!-- cc删除用户信息的按钮 -->
            <el-button
              type="primary"
              icon="el-icon-delete"
              size="mini"
              @click="deletTips(scope.row.id)"
            ></el-button>
            <!-- cc设置角色的按钮 -->
            <el-button
              type="primary"
              icon="el-icon-setting"
              size="mini"
              @click="showSetRole(scope.row)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- bb分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="currentPage4"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
      <!-- bb添加用户的对话框  -->
      <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%"
        @close="addDialogClose"
      >
        <el-form
          :model="addForm"
          :rules="addFormRules"
          ref="addUserFormRef"
          label-width="100px"
        >
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- cc成功、取消按钮 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>
      <!-- bb修改用户信息的对话框 -->
      <el-dialog
        title="提示"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="closeEditDialog"
      >
        <!-- cc修改用户信息的表单 -->
        <el-form
          :model="editUserInfo"
          :rules="editUserInfoRules"
          ref="editUserInfoRef"
          label-width="80px"
        >
          <el-form-item label="用户名">
            <el-input v-model="editUserInfo.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editUserInfo.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="editUserInfo.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- cc确定和取消按钮 -->
        <span slot="footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="submitUserInfo">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 设置角色的对话框 -->
      <el-dialog
        title="分配角色"
        :visible.sync="setDialogVisible"
        width="30%"
        @close="setRoleDialogClosed"
      >
        <div>
          <p>当前的用户: {{ userInfo.username }}</p>
          <p>当前的角色: {{ userInfo.role_name }}</p>
          <p>
            分配新角色：
            <el-select v-model="selectRoleId" placeholder="请选择">
              <el-option
                v-for="item in roleList"
                :key="item.id"
                :label="item.roleName"
                :value="item.id"
              >
              </el-option>
            </el-select>
          </p>
        </div>
        <span slot="footer" class="dialog-footer">
          <el-button @click="setDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
      </el-dialog>
    </el-card>
  </div>
</template>

<script>
export default {
  data () {
    // 自定义邮箱、手机号验证规则
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/
      if (regEmail.test(value)) {
        // 合法邮箱
        return callback()
      }
      callback(new Error('请输入合法邮箱'))
    }
    var checkMobile = (rule, value, callback) => {
      const regMobile = /^1[34578]\d{9}$/
      if (regMobile.test(value)) {
        return callback()
      }
      // 返回一个错误提示
      callback(new Error('请输入合法的手机号码'))
    }
    return {
      // 获取用户列表查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 5
      },
      userlist: [],
      total: 0,
      currentPage4: 5,
      addDialogVisible: false,
      setDialogVisible: false,
      editDialogVisible: false,
      // 添加用户的表单数据和验证规则
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      addFormRules: {
        username: [
          { required: true, message: '请设置用户名', trigger: 'blur' },
          { min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请设置密码', trigger: 'blur' },
          { min: 3, max: 5, message: '长度在 3 到 8 个字符', trigger: 'blur' }],
        email: [
          { required: true, message: '请填写邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }],
        mobile: [
          { required: true, message: '请填写电话', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }]
      },
      // 修改用户信息表单相关
      editUserInfo: {
        username: '',
        id: '',
        email: '',
        mobile: ''
      },
      editUserInfoRules: {
        userName: [],
        email: [
          { required: true, message: '请填写邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }],
        mobile: [
          { required: true, message: '请填写电话', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }]
      },
      userInfo: {},
      roleList: [],
      selectRoleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    // 请求用户列表数据
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) {
        return res.meta.msg
      }
      this.userlist = res.data.users
      this.total = res.data.total
    },
    // 改变每页显示数据数量
    handleSizeChange (newSize) {
      // console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    handleCurrentChange (e) {
      this.queryInfo.pagenum = e
      this.getUserList()
    },
    // 更改用户状态
    async userStateChanged (userInfo) {
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      //   console.log(res)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功！')
    },
    // 监听添加用户的对话框关闭
    addDialogClose () {
      this.$refs.addUserFormRef.resetFields()
    },
    // 点击按钮添加新用户
    async addUser () {
      //   提交请求前，表单预验证
      this.$refs.addUserFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        this.addDialogVisible = false
        this.getUserList()
      })
    },
    showEditDialog (e) {
      this.editDialogVisible = true
      this.editUserInfo.username = e.row.username
      this.editUserInfo.email = e.row.email
      this.editUserInfo.id = e.row.id
      this.editUserInfo.mobile = e.row.mobile
    },
    // 监听修改用户信息的对话框关闭
    closeEditDialog () {
      this.$refs.editUserInfoRef.resetFields()
    },
    submitUserInfo () {
      // 提交请求前，表单预验证
      this.$refs.editUserInfoRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.put(
          'users/' + this.editUserInfo.id,
          { email: this.editUserInfo.email, mobile: this.editUserInfo.mobile }
        )
        if (res.meta.status !== 200) {
          this.$message.error('更新用户信息失败！')
        }
        this.$message.success('更新用户信息成功！')
        this.getUserList()
        this.editDialogVisible = false
      })
    },
    // 删除用户信息
    async deletTips (id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?', '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      // 点击确定 返回值为：confirm,点击取消 返回值为： cancel
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除用户失败！')
      this.$message.success('删除用户成功！')
      this.getUserList()
    },
    async showSetRole (role) {
      this.userInfo = role
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        this.$message.error('获取角色列表失败')
      }
      this.roleList = res.data
      this.setDialogVisible = true
    },
    setRoleDialogClosed () {
      this.selectRoleId = ''
      this.userInfo = {}
    },
    // 提交分配角色
    async saveRoleInfo () {
      if (!this.selectRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      console.log(this.userInfo)
      console.log(this.selectRoleId)
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectRoleId })
      console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('更新用户角色失败！')
      }
      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    }
  }
}
</script>

<style lang="less" scoped>
.el-table {
  margin-top: 20px;
}
.el-pagination {
  margin-top: 20px;
}
</style>
